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Archived threads in /sci/ - Science & Math - 89. page
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What does it mean when some people say that big bang is not an explosion?

Explosion: a rapid increase in volume and release of energy in an extreme manner

...Isn't it technically what it is? Is it a meme?
>>
if it was an explosion, like a bomb, the universe wouldn't seem symmetric from our point of view (except if we were at ground zero)
>>
It expanded in a bell shape.. hence the pic.
Our universe, is right now sitting at the end of the 'bell' edge on.
The current state of cosmologay is a little tragic with memers like Tyson and Cox, so that anyone studying it is referred to as a 'bell-end' in an affectionate manner.

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Does Name/Brand/Prestige = Higher Starting pay + Higher opportunity? Or is this just a meme? If it depends on courses, what course does it matter in?
>>
>>7789933
A prestigious program means

-Good networking opportunities
-Big companies directly recruit from that school
-Good opportunities to learn cutting edge stuff
-Good equipment / labs / etc.

You can turn all of that into higher pay and better opportunities, if you're not a moron, but it's up to you to do the work.

Also note that I do not say "good classes". In a research-focused university, which is what the prestigious ones are, quality of undergraduate education is sometimes...

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HELLO.

I HAVE TWO QUESTIONS:

1. WHAT THE "FUCK" IS THE RELATIVE ORIENTATION OF THE ORION NEBULA ("M42")? I HAVE FUTILELY SEARCHED ONLINE FOR ANY RELEVANT INFORMATION; IT SHOULD NOT BE THIS DIFFICULT TO FIND OUT.

I WANT TO KNOW WHERE DOES THE "OPENING" OR "MOUTH" OF THE NEBULA POINT, RELATIVE TO AN OBSERVER ON EARTH; "UPWARD", TOWARD ORION'S HEAD, OR "DOWNWARD"?

2. THERE ARE FOUR PRIME "STARS" THAT COMPOSE "ORION'S SWORD"; THEIR NAMES ARE "HATSYA", "M42",...
>>
>>7789887
Nigga
https://en.wikipedia.org/wiki/Orion's_Sword
>The Orion's Sword is an astronomical asterism in the constellation Orion.
>It comprises three stars (c, Theta, and Iota Orionis) under the prominent asterism, Orion's Belt.
>M42, the Orion Nebula is located in the center. It points in a southerly direction, and resembles distantly a sword.

Lota Orionis is Hatsya https://en.wikipedia.org/wiki/Iota_Orionis
M43...
>>
>>7789887

Lay off the drugs homie.
>>
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>>7789935

THAT TELLS ME VIRTUALLY NOTHING, BESIDE, THE INFORMATION IS SELFCONTRADICTORY; IT TELLS THAT "ORION'S SWORD" COMPRISES THREE STARS, THEN YOU PROCEED TO NAME FIVE OBJECTS.

ALSO, ODD THAT THERE ARE NO DEPICTIONS, OR PHOTOGRAPHS OF "c", AND "THETA ORIONIS".

1. I WANT TO KNOW WHAT ARE THE NAMES OF THE OBJECTS IMMEDIATELY IDENTIFIABLE FROM EARTH'S SURFACE WITHOUT IMPLEMENTS.

I AM NOT INTERESTED IN SCHOLASTIC CONSTRUCTS/FABRICATIONS, OR IN ALLEGED OBJECTS.

2....

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Lets carry out an experiment.

What would happen if I hold two magnets together in the pictured configurations and run an electrical current through said magnets?

Magnets would be mounted on a non metallic structure.

All variations of electrical charge, amperage, voltage and magnet being electrified will be tested.

Any suggestions?
> For sake of the thread, assume OPs knowledge is high school level.
>>
They would lose their conductivity and in turn magnetism since heat increases resistance
>>
>>7789874
My research is actually on ferromagnetic and superconducting interfaces, particularly F/F/S, so what you're describing sounds familiar as a classical spin valve.

See each magnet has a preferred spin orientation, giving them their magnetic field. Thus when a current is ran through a magnet, not only is charge being transferred but the spin is as well. When current runs from a normal metal into a magnet, spins matching that of the ferromagnet will pass through with ease but the opposing spin will either...
>>
>>7789897
Now if you'll excuse my ineptitude in the subject.
Would you care to explain what you wrote in a way easier to understand for someone not versed in the subject?

Also, lets take this variation of the setup.

Magnets set with poles that repel, facing each other.
Low voltage, high amperage positive current run through both magnets.
What would happen?
>I would be actually doing the experiment if I had the materials

>>
>>7789861
Selfish search for mathematical truth.
>>
>>7789861
isn't it ego? most people want to be called doctors since they could not really become a real doc?
>>
>>7790125
MDs are the real doctors
Ph.D.s are just memes

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You have been sent back in time to the medieval age with nothing but your clothes. You have sought out a leading academic of the age. You offer knowledge in exchange for food and shelter.

How do you explain the following to him:

Evolution

Electricity

Flight

Light

Time
>>
>>7789847

Evolution
>sex, food, and time
Electricity
>arrows, dots, and squigglies

Flight
>more fucking arrows

Light
>squigglies, arrows, and dots

Time
>fuck you
>>
>>7789847
realize I don't speak a lick of medieval italian, let alone modern italian and starve to death

If I merely get sent back in time without my location being moved, I die in the vacuum of space. If I get sent back in time with me having the same location w.r.t. the earth, I'm in a very sparsely populated area of north america and I'm probably going to die alone.
>>
>>7789870
looks like you're going to die, sorry anon

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Can we have this thread again?
>>
No.
>>
>>7789836

No.

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Daily reminder that the most highly-cited Physicist of all time has a history undergraduate degree.

STEM elitists status:

B L O W N T H E F U CK O U T
L
O
W
N

T
H
E

F
U
C
K

O
U
T
>>
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>m theory
>physics
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>>7789824
Isn't he a mathematician?
>>
>>7789859
No.

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EXPLAIN THIS NERDS
>>
close to 0 net torque on the coin I.e
>>
Fuck jocks.

Or it didn't look like it was spinning because you were too busy scooping nacho cheese than playing a sport,
>>
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>>7789820
>Fuck jocks.

ITT we confuse the mathsfags

$-20 = -20$
$25 - 45 = 16 - 36$
$5^2 - (5 \times 9) = 4^2 - (4 \times 9)$
$5^2 - (5 \times 9) + \frac{81}{4}= 4^2 - (4 \times 9) + \frac{81}{4}$
$(5-\frac{9}{2})^2 = (4-\frac{9}{2})^2$
$5-\frac{9}{2}= 4-\frac{9}{2}$
$5 = 4$

checkmate mathfags
>>
>>7789768
>>
$\int tan(x)dx = \int tan(x)dx$
$\int tan(x)dx = \int sin(x)sec(x)dx$
$\int tan(x)dx = -sec(x)cos(x) + \int cos(x)tan(x)sec(x)dx$
$\int tan(x)dx = -1 + \int tan(x) dx$
$0 = -1$
>>
Line 5 does not imply line 6

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>conventional current is positive particle flow
>in reality, protons don't actually flow
Why is this allowed?

Physicsfags will defend this.
>>
>>7789750
Because Heisenberg's uncertainty principle, how would you know they are moving or not moving, they could be moving and not moving at the same time. They are there, they may not be there. They can be everywhere at the same time, do you understand? You've brought this upon yourself, you've brought quantum mechanics into this.
>>
>>7789750
It's called a *convention* for a reason. It affects nothing and everyone uses it.
>>
>>7789767
Much like how the geocentric model was a convention that everybody used affecting nobody.

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?
>>
Relative to an external observer circle A revolves 4 times because circle A's centre is also rotating, relative to Circle B circle A revolves 3 times as circle A's centre is stationary. Clearly the answer is either 3 and 4, and in this case 3 is an acceptable choice as 4 is not presented.
>>
>>7789746
That wasn't so dfficult, try harder next time

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After smoking a cigarette, is gargling with carbonated water any better at removing toxins than normal water? Why? Is Moot actually a homosexual?
>>
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>>7789692
>>
Just don't smoke and you won't need to targle anything. Not that it would stop OP from gargling cum.

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Can someone explain the cost of a good undergrad STEM/Econ education to me? \$70,000 per year makes absolutely no sense.
>>
>>7789680
UChicago STEM/Econ degrees have one of the highest average ROI's in existence. Don't worry too much about the price tag as long as you plan on working afterwards.
>>
>>7789686
How does one into Ph.D. In UoC?
>>
>>7789725
Go to college at UoC

How do I explain to my friend that UC Davis is actually not a super amazing school.

he seems convinced that he's going to a prestigious institution, when in reality is just barley above the state schools, and even then falls short of both cal poly's and SDSU.
>>
>>7789641
>implying its not a prestigious university
>implying your just not jelly you couldn't get in

You probably are going to cal poly and are salty you didn't get into davis.
>>
>>7789641
People make way too much of a big deal about prestige. As long as it's accredited and they're doing research it's more about what you put into it.
>>
>>7789641
Davis 30th best overall school in the world, are you actually this autistic? This is coming from a Cornell student.

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